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Modeling of combined discrete/continuous processes
Author(s) -
Barton P. I.,
Pantelides C. C.
Publication year - 1994
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690400608
Subject(s) - discrete modelling , computer science , classification of discontinuities , continuous modelling , representation (politics) , process (computing) , physical system , discrete system , range (aeronautics) , task (project management) , control engineering , algorithm , mathematics , engineering , systems engineering , programming language , mathematical analysis , physics , quantum mechanics , politics , political science , law , aerospace engineering
The dynamic behavior of processing systems exhibits both continuous and significant discrete aspects. Process simulation is therefore a combined discrete/continuous simulation problem. In addition, there is a critical need for a declarative process modeling environment to encompass the entire range of processing system operation, from purely continuous to batch. These issues are addressed by this article. A new formal mathematical description of the combined discrete/continuous simulation problem is introduced to enhance the understanding of the fundamental discrete changes required to model processing systems. The modeling task is decomposed into two distinct activities: modeling fundamental physical behavior, and modeling the external actions imposed on this physical system. Both require significant discrete components. Important contributions include a powerful representation for discontinuities in physical behavior, and the first detailed consideration of how complex sequences of control actions may be modeled in a general manner.

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